"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 故障&可靠性测试
Case Name   : 主机表空间目录下存在文件，进行表空间删除
Create At   : 2022/05/22
Owner       : @peilinqian
Description :
    1、创建表空间;
    2、创建表;
    3、删除表;
    4、表空间数据库对象文件夹下创建文件;
    5、清理表及表空间;
    6、清理表空间数据库对象文件夹下创建的文件;
    7、表空间目录下创建不相关文件;
    8、清理表及表空间;
Expect      :
    1、创建表空间;创建成功
    2、创建表;创建成功
    3、删除表;删除成功
    4、表空间数据库对象文件夹下创建文件;创建成功
    5、清理表及表空间;失败
    6、清理表空间数据库对象文件夹下创建的文件;清理成功
    7、表空间目录下创建不相关文件;创建成功
    8、清理表及表空间;成功
History     :
"""

import os
import re
import unittest

from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.CommonSH import RestartDbCluster
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node
from yat.test import macro


class DbSysCase280(unittest.TestCase):
    nodes_tuple = ('PrimaryDbUser', 'Standby1DbUser', 'Standby2DbUser')

    @RestartDbCluster(*nodes_tuple)
    def setUp(self):
        self.log = Logger()
        self.log.info(f'-----{os.path.basename(__file__)} start-----')
        self.pri_root = Node(node='PrimaryRoot')
        self.pri_dbuser = Node(node='PrimaryDbUser')
        self.sta1_dbuser = Node(node='Standby1DbUser')
        self.sta2_dbuser = Node(node='Standby2DbUser')
        self.pri_sh = CommonSH('PrimaryDbUser')
        self.constant = Constant()
        self.com = Common()
        self.tbspc_name = 'tbspc_dbsys280'
        self.tbspc_path = os.path.join(os.path.dirname(
            macro.DB_INSTANCE_PATH), 'tbspc_dbsys280')
        self.create_ts_sql = f"create tablespace {self.tbspc_name} " \
            f"location '{self.tbspc_path}';"
        self.drop_ts_sql = f"drop tablespace if exists {self.tbspc_name};"
        self.tb_name = 't_dbsys280'
        self.create_tb_sql = f"drop table if exists {self.tb_name};" \
            f"create table {self.tb_name} (id int,name varchar(100)) " \
            f"tablespace {self.tbspc_name};"
        self.drop_tb_sql = f"drop table if exists {self.tb_name};"
        self.new_file_name = 'file_dbsys280'
        self.err_msg = f'ERROR:  tablespace "{self.tbspc_name}" is not empty'
        self.chmod_cmd = f'chmod authority {self.tbspc_path} &&' \
            f'ls -al {os.path.dirname(self.tbspc_path)} ' \
            f'|grep {self.tbspc_name}'

    def test_main(self):
        step_txt = '----step1:创建表空间;expect:创建成功----'
        self.log.info(step_txt)
        create_result = self.pri_sh.executDbSql(self.create_ts_sql)
        self.log.info(create_result)
        self.assertIn(self.constant.CREATE_TBLSPACE_SUCCESS_MSG,
                      create_result, "执行失败" + step_txt)

        step_txt = '----step2:创建表;expect:创建成功----'
        self.log.info(step_txt)
        create_result = self.pri_sh.executDbSql(self.create_tb_sql)
        self.log.info(create_result)
        self.assertIn(self.constant.TABLE_CREATE_SUCCESS, create_result,
                      "执行失败" + step_txt)

        step_txt = '----查询表实际路径----'
        self.log.info(step_txt)
        location_sql = f"select pg_relation_filepath(" \
            f"(select oid from pg_class where relname = '{self.tb_name}')" \
            f"::regclass);"
        tmp = self.pri_sh.executDbSql(location_sql)
        self.log.info(tmp)
        t_link = tmp.splitlines()[-2].strip()
        self.log.info('数据库对象文件链接路径：' + t_link)
        t_link_dir = os.path.dirname(
            os.path.join(macro.DB_INSTANCE_PATH, t_link))
        ls_cmd = f'cd $(readlink -f {t_link_dir}) && pwd'
        self.log.info(ls_cmd)
        self.file_location = self.pri_root.sh(ls_cmd).result()
        self.log.info('--数据库对象文件所在的路径--')
        self.log.info(self.file_location)

        step_txt = '----step3:删除表;expect:删除成功----'
        self.log.info(step_txt)
        drop_tb_result = self.pri_sh.executDbSql(self.drop_tb_sql)
        self.log.info(drop_tb_result)

        step_txt = '----step4:表空间数据库对象文件夹下创建文件;expect:创建成功----'
        self.log.info(step_txt)
        self.create_file = os.path.join(self.file_location,
                                        self.new_file_name)
        create_file_cmd = f'touch {self.create_file}'
        self.log.info(create_file_cmd)
        create_file_msg = self.pri_dbuser.sh(create_file_cmd).result()
        self.log.info(create_file_msg)
        check_cmd = f'if [ -f {self.create_file} ]; then echo "exists"; ' \
            f'else echo "not exists"; fi'
        check_msg = self.pri_dbuser.sh(check_cmd).result()
        self.assertEqual('exists', check_msg, "执行失败" + step_txt)

        step_txt = '----step5:清理表及表空间;expect:失败----'
        self.log.info(step_txt)
        drop_ts_result = self.pri_sh.executDbSql(self.drop_ts_sql)
        self.log.info(drop_ts_result)
        self.assertEqual(len(re.findall(self.err_msg, drop_ts_result)), 1,
                         "执行失败" + step_txt)

        step_txt = '----step6:清理表空间数据库对象文件夹下创建的文件;expect:清理成功----'
        self.log.info(step_txt)
        clean_file_cmd = f'rm -rf {self.create_file}'
        self.log.info(clean_file_cmd)
        clean_file_msg = self.pri_dbuser.sh(clean_file_cmd).result()
        self.log.info(clean_file_msg)
        check_cmd = f'if [ -f {self.create_file} ]; then echo "exists"; ' \
            f'else echo "not exists"; fi'
        check_msg = self.pri_dbuser.sh(check_cmd).result()
        self.assertEqual('not exists', check_msg, "执行失败" + step_txt)

        step_txt = '----step7:表空间目录下创建不相关文件;expect:创建成功----'
        self.log.info(step_txt)
        self.create_file = os.path.join(self.tbspc_path, self.new_file_name)
        create_file_cmd = f'touch {self.create_file}'
        self.log.info(create_file_cmd)
        create_file_msg = self.pri_dbuser.sh(create_file_cmd).result()
        self.log.info(create_file_msg)
        check_cmd = f'if [ -f {self.create_file} ]; then echo "exists"; ' \
            f'else echo "not exists"; fi'
        check_msg = self.pri_dbuser.sh(check_cmd).result()
        self.assertEqual('exists', check_msg, "执行失败" + step_txt)

        step_txt = '----step8:清理表及表空间;expect:成功----'
        self.log.info(step_txt)
        drop_ts_result = self.pri_sh.executDbSql(self.drop_ts_sql)
        self.log.info(drop_ts_result)
        self.assertIn(self.constant.drop_tablespace_success_msg,
                      drop_ts_result, "执行失败" + step_txt)

    def tearDown(self):
        self.log.info("----this is tearDown----")
        step1_txt = '----清理表及表空间; expect:成功----'
        self.log.info(step1_txt)
        drop_tb_result = self.pri_sh.executDbSql(self.drop_tb_sql)
        self.log.info(drop_tb_result)
        drop_ts_result = self.pri_sh.executDbSql(self.drop_ts_sql)
        self.log.info(drop_ts_result)
        step2_txt = '----删除表空间路径; expect:成功----'
        self.log.info(step2_txt)
        del_cmd = f"rm -rf {self.tbspc_path}; " \
            f"if [ -d {self.tbspc_path} ]; then echo 'exists'; " \
            f"else echo 'not exists'; fi;"
        self.log.info(del_cmd)
        del_result1 = self.pri_dbuser.sh(del_cmd).result()
        del_result2 = self.sta1_dbuser.sh(del_cmd).result()
        del_result3 = self.sta2_dbuser.sh(del_cmd).result()
        self.log.info(del_result1)
        self.log.info(del_result2)
        self.log.info(del_result3)

        self.log.info(f'-----{os.path.basename(__file__)} end-----')
        self.assertIn(self.constant.TABLE_DROP_SUCCESS, drop_ts_result,
                      "执行失败" + step1_txt)
        self.assertIn(self.constant.drop_tablespace_success_msg,
                      drop_ts_result, "执行失败" + step1_txt)
        self.assertEqual('not exists', del_result1, "执行失败" + step2_txt)
        self.assertEqual('not exists', del_result2, "执行失败" + step2_txt)
        self.assertEqual('not exists', del_result3, "执行失败" + step2_txt)
